CHRISTOPHER JOHN D'ARPA
NPI 1417636762
Social Worker in Bethesda, MD

Active since July 13, 2023Opted out of Medicare · through Feb 2, 2028
4350 E WEST HWY STE 200, BETHESDA, MD 20814(240) 778-5705 Get Directions Write a Review

NPPES record last updated: July 13, 2023. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Christopher John D'arpa NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CHRISTOPHER JOHN D'ARPA (NPI 1417636762) is an individual social worker in Bethesda, Maryland, licensed in Maryland (30306) and active in the NPI registry since July 2023. He has opted out of Medicare through February 2, 2028.

NPPES Registry Identity

NPI1417636762
Entity TypeIndividualMale
Primary Taxonomy104100000X
Provider Legal NameCHRISTOPHER JOHN D'ARPA
Location Address4350 E WEST HWY STE 200Bethesda, MD 20814-4426
Mailing Address15104 Dufief DrNorth Potomac, MD 20878-2413 · (240) 778-5705
Sole ProprietorNo
Enumeration DateJuly 13, 2023
NPPES CertifiedJuly 13, 2023
NPI 1417636762 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers
Taxonomy Code104100000X
License Licensed in MD · 30306
Definition
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.
4350 E WEST HWY STE 200, Bethesda, MD 20814

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Opted out of Medicare

Christopher John D'arpa has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from February 2, 2026 through February 2, 2028.

Opt-Out Effective DateFebruary 2, 2026
Opt-Out In Effect ThroughFebruary 2, 2028Opt-out affidavits renew automatically every two years unless cancelled

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Social Worker (Clinical)
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Psychiatry & Neurology (Psychiatry)
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Psychiatry & Neurology (Psychiatry)
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Social Worker
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Social Worker (Clinical)
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Psychiatry & Neurology (Child & Adolescent Psychiatry)
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Psychiatry & Neurology (Psychiatry)
4350 E WEST HWY STE 200
BETHESDA, MD 20814
Nurse Practitioner (Psychiatric/Mental Health)
4350 E WEST HWY STE 200
BETHESDA, MD 20814

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Christopher D'arpa's NPI number?

The NPI number for Christopher D'arpa is 1417636762. It was assigned to this individual provider in the NPPES registry on July 13, 2023.

Where is Christopher D'arpa located?

Christopher D'arpa practices at 4350 E West Hwy Ste 200, Bethesda, MD 20814. The listed phone number is (240) 778-5705.

What is Christopher D'arpa's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Is Christopher D'arpa enrolled in Medicare?

No. Christopher D'arpa has opted out of Medicare through February 2, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Christopher D'arpa was last updated on July 13, 2023. NPI Profile syncs with the weekly NPPES data releases published by CMS.